Nobody says the come and go. They can come on later in life but once there you are basically stuck with it. Reason being is that allergies are an immune reaction. These are mediated by immune cells, antibodies, that bind to the $insert_bad_thing and put a “murder me” sign on its back. These cell are produced by long lived immune cells.
Nobody says the come and go. They can come on later in life but once there you are basically stuck with it. Reason being is that allergies are an immune reaction. These are mediated by immune cells, antibodies, that bind to the $insert_bad_thing and put a “murder me” sign on its back. These cell are produced by long lived immune cells.